Textbook Question
The synthesis of ATP from ADP anda. stores energy in a form that can drive cellular work.b. involves the hydrolysis of a phosphate bond.c. transfers a phosphate, priming a protein to do work.d. is an exergonic process.
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3. Energy & Cell Processes
ATP
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Which of the following is the most correct interpretation of the figure?
A
Energy from food sources can be used directly for performing cellular work.
B
ADP + Pi are a set of molecules that store energy.
C
ATP is a molecule that acts as an intermediary to store energy for cellular work.
D
Pi acts as a shuttle molecule to move energy from ATP to ADP.
Verified step by step guidance1
Observe the diagram which shows a cycle involving ATP, ADP, and Pi (inorganic phosphate).
Note that the diagram indicates energy from food is used to convert ADP and Pi into ATP.
Understand that ATP is depicted as a central molecule that stores energy, which is then used for cellular work.
Recognize that the conversion of ATP to ADP and Pi releases energy for cellular processes, as shown by the arrow labeled 'Energy for Cellular Work'.
Conclude that ATP acts as an intermediary molecule, storing energy from food and releasing it for cellular work, which aligns with the correct interpretation provided.
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